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Studies of Electrically-Exploded Conductors for Electric Armour Applications

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Appelgren P., Larsson A., Lundberg P., Skoglund M., Westerling L.
Acta Physica Polonica A
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2009
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vol. 115
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issue 6
1072-1074
EN
This paper presents experimental studies of current interaction with static copper rods. The results of the static experiments are used to discuss the effects responsible for the disruption of shaped-charge jets in electric armour. These effects include ohmic heating of, and current diffusion into, the rod as well as radial magnetic forces.
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First Trials with a 45 GW Cable-Based Pulsed-Power Generator

100%
Lindblom A., Elfsberg M., Hurtig T., Larsson A., Nyholm S.
Acta Physica Polonica A
|
2009
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vol. 115
|
issue 6
976-977
EN
The output from narrow-band high-power microwave (HPM) sources, such as the virtual cathode oscillator (vircator) and the magnetically insulated line oscillator (MILO), is strongly dependent on the voltage pulse feed. A rectangular, flat-top voltage pulse can be achieved by the use of a transmission line as a pulse-forming unit. The development in high-voltage cable technology has made them useful as parts of high-voltage and high-power generator systems. The generator is designed to deliver a 200 ns voltage pulse of 500 kV into a 10 Ω unmatched load with an electric power of 25 GW. The generator has an impedance of 2 Ω. The primary energy storage of the generator consists of a 50 kV, 20 kJ capacitor bank. The 50 kV is discharged into a transformer that charges a pulse-forming line to 550 kV. When charged, the pulse-forming line is discharged into the load via a spark gap. This paper presents results from initial testing of the generator.
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